JPH0466137A - Crushing machine - Google Patents

Abstract

PURPOSE: To intend to produce a fine powder with an uniform particle size distribution by installing a polishing roll, which is supported with a controlling measure at both ends of its supporting axis, in the interior of a polishing cylin der supported by a base roller, and by rotating both of them to the same direc tion with a transmitting measure. CONSTITUTION: A polishing cylinder 21 forming arc shaped guiding ends at its both ends is supported on base rollers 13 at both ends of a base axis 14 which is installed on a machine bed 11. Also, a polishing roll 32 which is supported by a controlling measure 70 at both ends of its supporting axis 31 as well as is forming same arcked guiding ends 35, at its both ends, corresponding to the guiding ends 26 of the polishing cylinder 21 is inserted for installation in the interior of the polishing cylinder 21. And, the cylinder 21 and the roll 32 are rotated in the same direction by a transmitting measure. As a result, it is possible, as being equipped with a preferable polishing angle and surface, to polish into a fine powder with uniform particle size distribution.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a pulverizer, and more particularly to a pulverizer that can improve the pulverizing effect and maintain the product particle size at an average size.

[Conventional technology]

Generally, fine powder such as stone powder used in various processes is manufactured by putting coarse stone into a crusher and subjecting it to abrasive and crushing processing.The crusher used for this process is as shown in Figure 7.
A power unit B is installed on the bottom edge of the mechanism A to rotate a polishing disk C provided above, and a corresponding grinding roll D is installed on top of the polishing disk C to By the relative rotation, the coarse material charged between both sides F of the mechanism A is ground and crushed, and the inlet G provided near the bottom end of the mechanism A is ground.
More air is introduced to blow up the fine product powder, which is then discharged and accumulated outside the mechanism A through the collection hopper H and the collection pipe (2) at the upper end of the mechanism A. However, as shown in FIG. 7 and FIG. 7A, since the polishing angle θ between the grinding roll D and the polishing disc C of the conventional crusher is large, the polishing area is small and the polishing and crushing effect is good ( In addition, under the action of centrifugal force due to the high-speed polishing rotation of the polishing disc C, the unfinished material is removed from the polishing disc C.
As the particles accumulate on the outer periphery side, the wear on the outer periphery is severe, and over a long period of time, the polished surface becomes uneven, which greatly affects the service life of the pulverizer and the quality of the fine powder product. When the area is increased, the volume of the machine becomes huge, and in particular, the polishing and crushing operation of the mechanism requires the above-mentioned sowing roll D.
Since this is carried out only at the mutually press-contact parts of the and polishing disk C, the parts where the two do not come into press-contact are not fully utilized.

[Problem to be solved by the invention]

This invention aims to solve the above-mentioned problems with the conventional pulverizers, and aims to provide a pulverizer that has a good grinding angle and grinding surface and can grind into fine powder with uniform particle size. With the goal.

[Means for Solving the Problems] Therefore, the present invention provides a polishing cylinder which is supported by base rollers at both ends of a base shaft provided above the mechanism, and which has upward arc-shaped guide edges formed on both ends thereof. A polishing roll is inserted in which both ends of the support shaft are supported by adjustment means, and both ends are formed with arc-shaped guide edges corresponding to the guide edges of the polishing cylinder, and both are rotated in the same direction by a transmission means. The purpose is achieved with this configuration, and a pair of receiving plates are connected to both ends of the polishing cylinder, and one end of which is engaged with a scooping wheel and a collecting and transporting pipe for the complete pulverized coarse powder inside each pair. A rotary shell with a rotating shell is fixed, and a support frame is fixed on both sides of the mechanism on each outer edge thereof, and a support frame is fixed on the inner side thereof, which has an engaging groove with a spring attached to the bottom edge, and the raw material loading The engaging parts formed on both sides of the fine powder chamber, which is equipped with an inlet, an air inlet, a fine powder product outlet, and a wind pipe inserted into the polishing cylinder, are fitted into the engagement grooves, and the fine powder is removed by the spring. The chamber can be adjusted up and down, and the polishing roll support shaft corresponds to a support arm and a frame arm, each of which is clamped and screwed at one end to a drive shaft at the top end of a drive support seat provided on the mechanism. A draw bar is installed on the lower surface of the polishing cylinder, and the supporting arm and the frame arm are sandwiched and fitted to support the support arm and the frame arm, so that the polishing roll support shaft can be adjusted up and down, and the polishing cylinder, or A raw material supply pipe, a raw material extrusion pipe that connects it to the punch, and an independent collection and transportation pipe are arranged at the upper end of the interior including the rotating shell or the fine powder chamber, respectively, and each of them has a raw material supply pipe, a raw material extrusion pipe that connects it to the punch, and a collection and transportation pipe. Alternatively, it is more preferable to transport unpulverized fine powder and introduce it between the polishing cylinder and the polishing roll.

[For production]

The present invention configured as described above has a polishing cylinder that is supported by base rollers provided at both ends of the base shaft on the mechanism, and has upward arc-shaped guide edges formed on both ends of the polishing cylinder. is supported by an adjusting means, a polishing roll is inserted on both ends thereof having arc-shaped guide edges corresponding to the above-mentioned guide edges, and both are rotated in the same direction by means of a transmission means. , the grinding angle of the grinding becomes smaller, and the grinding area becomes wider, and one end of the grinding cylinder is connected to both edges of the grinding cylinder, and a scooping wheel inside it, and one end of the grinding powder is connected to a collecting and transporting pipe for the complete coarse powder. A rotating shell equipped with a receiving plate is fitted, and a support frame is fixed on both sides of the mechanism on the outer edge, and on the inner side thereof, an engagement groove with a spring attached to the bottom edge is provided. The engaging parts formed on both sides of the fine powder chamber, which is equipped with a charging port, an air inlet, a fine powder product outlet, and a wind pipe to be inserted into the polishing cylinder, are fitted into the engaging grooves, and the spring The fine powder chamber can be adjusted up and down, and the polishing roll support shaft is connected to a drive shaft at the top end of a drive support seat provided on the mechanism by a support arm and a frame arm, each of which is clamped at one end. A draw rod is installed on the lower surface of the support arm and the frame arm are clamp-fitted on the corresponding sides of the support arm and the frame arm, so that the polishing roll support shaft can be adjusted up and down, and on the other hand, the above-mentioned A raw material supply pipe, a raw material extrusion pipe connected thereto, and a recovery transport pipe are arranged at the upper end of the inside of the polishing cylinder, or the interior including the rotating shell, or the fine powder chamber, respectively, and each is provided with a raw material supply pipe, a raw material extrusion pipe connected to the raw material supply pipe, and a recovery transport pipe. Alternatively, since the unpulverized fine powder is transported and introduced between the polishing cylinder and the polishing roll, the crushing effect is improved and the particle size of the finished product can be maintained at an average size.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

(Embodiment) FIG. 1 is a structural cross-sectional view of an embodiment of the present invention.
0, an external cylinder means 20, a roll means 30, a collecting means 40, a housing body 50, a raw material supplier 60, an adjusting means 70 and a transmission means 80. Among them, the mechanism 10 includes a mechanism 11 having a pair of support seats 12 and a pivot support ring 121 on its seat, and a base roller 13 on both ends of the pivot support ring 12. Base axis 14
The outer cylinder means 20 is a polishing cylinder having a spline-shaped reinforcing plate 22 having a heat dissipation function on its outer periphery. 21, a rotary sleeve 23 and a cylinder gear 24 corresponding to the lower surfaces of both ends thereof are fitted and pivoted, and a wear-resistant cylinder 25 is provided inside the polishing cylinder 21.
The roll means 30 is inserted inside the external cylinder means 20 and crushes at the point of contact between the two. A roll gear 33 is connected to both ends of the polishing roll support shaft 31 of the polishing roll 32, and a wear-resistant ring 34 is provided around the outer peripheral wall of the polishing roll 32.
Arc-shaped guide edges 35 corresponding to the guide edges 26 of the wear-resistant cylinder 25 are provided at both ends of the abrasion-resistant tube 25 to facilitate the removal of unpulverized coarse powder.

The collecting means 40 is installed on both sides of the external cylinder means 20, and is provided with a rotary shell 41 that is connected and fixed to the polishing cylinder 21 and rotates integrally with the polishing cylinder 21, and a receiving plate 43. The receiving swash plate 44 for the crushed unfinished coarse powder and the recovery transport pipe 45 are connected, and the receiving swash plate 4
4 receives the crushed unfinished coarse powder falling from the scooping wheel 42 and sends it to the recovery and transportation pipe 45, and through the recovery and transportation pipe 45 arranged at an appropriate slope, gravity is applied into the polishing cylinder 21. A screw conveyor 451 may be inserted inside the collection and transportation pipe 45 to introduce the unfinished coarse powder into the external cylinder means 20.

The housing body 50 is located outside the collecting means 40 and is mounted on the mechanism 11, and is mounted on the machine seat 11 as shown in FIG. A support frame 51 with an attached engagement groove 511 is fixed, and a fine powder chamber 52 with engagement parts 521 on both sides is placed on top of the spring 512, with the engagement part 521 attached to the engagement groove. 511, and the fine powder chamber 52 can be adjusted up and down by the spring 512, and a close pivot type dustproof device 53 and a popular type dustproof device 54 are attached to the other end of the fine powder chamber 52, respectively. A roll support shaft dustproof plate 55 is provided on the roll support shaft 31 of the roll means 30 at one end corresponding to the rotation shell 41 of the recovery means 40.
1 and a roll spindle dustproof device 55 consisting of a concave clamp 552 installed at the end of the fine powder chamber 52, and furthermore, the concave clamp 552 is provided with a shaft hole 553, and as shown in FIG. 52 has a raw material charging port 56 and an inlet port 5
7. The structure includes a fine powder product outlet 58 and a wind pipe 59 shown in FIG. 5 inserted into the polishing cylinder 21.

The raw material supplier 60 is provided in the housing body, and has a raw material supply pipe 61 and a raw material extrusion pipe 62 shown in FIG.
The raw material supply pipe 61 is attached to the raw material loading port 56, and the raw material extrusion pipe 62 is arranged using space, and supplies raw materials into the external cylinder means 20 using gravity. Therefore, a screw conveyor 621 driven by a gear of a transmission means 80, which will be described later, may be inserted therein.

The adjustment means 70 is installed on the mechanism 11 and consists of a support arm 71, a bearing sleeve 72, a frame arm 73 and a draw bar 74 shown in FIG.
3 and are both installed between a drive shaft 85 of a drive support seat 84 described later and the roll support shaft 31, and the drive support seat 84
is also provided on the mechanism 11. and the support arm 71
The bottom edge of the frame arm 73 is connected to the tow bar 74, and a hydraulic machine 741 may be attached to the tow bar 74.
is connected to and supported by the other end connected to the drive shaft 85, and controls the vertical adjustment of the roll support shaft 31 and the maintenance of balance on both sides before the roll support shaft 31 and the polishing cylinder 21 perform a crushing operation. This is a configuration that makes it possible.

The transmission means 80 is provided on the mechanism 11 as shown in FIG. , the second drive gear 82 meshes with the roll gear 33, the first and second gears 8L82 are both driven by the drive shaft 85, while the gear system is connected to the raw material supplier.
60 screw conveyor 621 and the recovery transport pipe 45
This is a configuration that drives a screw conveyor 451.

FIG. 2 is a cross-sectional view of the collecting means 40 in an embodiment of the present invention, in which the scooping wheel 42 carries the crushed unfinished coarse powder to a receiving plate 44 and further passes it through a collecting and transporting pipe 45. The material is dropped between the polishing cylinder 21 and the polishing roll 32 for pulverization and polishing. The raw material or the unfinished coarse powder is supplied between the polishing cylinder 21 and the polishing roll 32 by scattering and falling in a balanced manner. The wind pipe 59 blows up the fine powder after pulverization and sends it out from the fine powder product outlet 58, and also serves to cool the polishing cylinder 21 and polishing roll 32.

FIG. 3 is a schematic diagram of the adjustment means 70 in the embodiment of the present invention, and the tow bar 74 can lift up the support arm 71 and the frame arm 73 to adjust the height of the roll support shaft 31 appropriately. By adjusting the gap between the polishing cylinder 21 and the roll 32 during polishing and pulverizing, the polishing roll 32 is appropriately pressed against the polishing cylinder 21 to obtain a good pulverizing effect. The frame arm 73 is formed into a rectangular frame that surrounds the periphery of the machine, so that the vertical adjustment on both sides of the roll support shaft 31 is always maintained in a horizontal state, and prevents careless movement of the roll support shaft 31. This is to avoid damage to the transmission gear due to inclination.

FIG. 4 is a diagram showing the main transmission operations in the embodiment of the present invention, in which the first drive shaft 81 and the second drive shaft 82 are connected to the drive shaft 85.
The polishing cylinder 21 and the polishing roll 32 are rotated in the same direction, and the polishing cylinder 21 is rotated on the base shaft 14 and moved to a predetermined position. It is supported by the support seat 12 and the pivot support ring 121 for rotational operation.

FIG. 5 is a side sectional view of an embodiment of the present invention, and the roll spindle dustproof device 55 consists of a roll spindle dustproof plate 551 and a recessed clamp 552 at the end of the fine powder chamber 52 (no other dustproof device is used). Although the roll spindle dustproof plate 551 moves up and down together with the roll spindle 31, since the recessed clamp 552 is attached as described above, the dustproof effect is not lost.

In normal operation, the polishing cylinder 21 and the polishing roll 32 are driven by the transmission means 80 to rotate, and the adjusting means 70 causes the polishing cylinder 21 and the polishing roll 3 to rotate.
The contact force for polishing and pulverization can be increased by adjusting the polishing gap of 2, and the pulverized raw material is introduced from the raw material extrusion pipe 62 of the raw material subrier 60 and the collection and transportation pipe 45 of the collection means 40, and the raw material is introduced into the polishing cylinder 21 and The particles are uniformly distributed over the entire surface between the polishing rolls 32 and dropped to perform polishing and pulverization.

As shown in FIG. 6, the polishing angle α formed between the polishing cylinder 21 and the polishing roll 32 is extremely small (as a result, the contact polishing area between the two becomes quite large, and considerable pressure and tensile force are generated). In addition, during the polishing and crushing process, unfinished crushed products overflowing from between the arc-shaped guide peripheral edge 26 and the arc-shaped guide edge 35 can be collected by the recovery means 40. The raw material can then be collected and introduced between the polishing cylinder 21 and the polishing roll 32 for polishing and pulverization again, and then the raw material can be pulverized to a fine powder of a desired size.

〔Effect of the invention〕

In the present invention configured as described above, the vertical movement of the roll support shaft can be adjusted by the adjustment means supporting the roll support shaft, and the approach gap between the polishing cylinder and the polishing cylinder can be controlled as desired. It is now possible to adjust the grinding angle for grinding to be smaller and the grinding area to be wider.Furthermore, on both edges of the grinding cylinder, there are receivers inside which engage a scooping wheel and a collecting and transporting pipe for unpulverized coarse powder at one end. A rotary shell with a plate is fitted therein, and a support frame is fixed on both sides of the linear pressure side of the outer edge, and an engagement groove with a spring attached to the bottom edge is provided on the inner side, and the support frame is fixed on both sides of the fine powder chamber. The engaging portion formed in the above is fitted into the engaging groove so that the vertical movement of the fine powder chamber can be adjusted by the spring, and the roll support shaft is connected to the drive support seat provided on the mechanism. A support arm and a frame arm, each of which has one end clamped and screwed together with the drive shaft at the top end, and a frame arm are clamped and fitted on the corresponding sides of the support arm and the frame arm. , the roll support shaft can be adjusted up and down, and on the other hand, a raw material supply pipe and a raw material supply pipe are provided at the upper end of the interior of the polishing cylinder, or the rotary shell, or the fine powder chamber, respectively. A connecting raw material extrusion pipe and an independent collection and transportation pipe are provided, and the pulverized raw material or unpulverized fine powder is conveyed through each pipe and introduced between the polishing cylinder and the polishing roll, so that the pulverization effect is improved. It is possible to maintain the particle size of the finished product at an average size.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a cross-sectional view of an embodiment of the present invention, Fig. 2 is a side view of a rotating shell in an embodiment of the present invention, and Fig. 3 is a cross-sectional view of an embodiment of the present invention. FIG. 4 is a side view of the adjusting means in the example, FIG. 4 is a side view of the driving means in the embodiment of the present invention, and FIG. 5 is a side view of the housing body in the embodiment of the present invention. FIG. 6 is a diagram showing the polishing angle in an embodiment of the present invention, and FIG. 7 is a diagram showing the structure of a conventional crusher.
FIG. 7A is a diagram showing the polishing angle in a conventional crusher. 11: mechanism, 13: base roller, 14: base shaft, 21: polishing cylinder, 26: arc-shaped guide edges at both ends of polishing cylinder, roll support shaft, polishing roll, (i [arc-shaped guide edges at both ends of roll, rotation Shell, scooping wheel, receiving plate, collection and transportation pipe, support frame, fine powder chamber, raw material charging port, air inlet, fine powder product outlet, wind pipe, engagement groove, spring, engaging part, raw material supply pipe, raw material Extruded tube, adjustment means, support arm, frame arm, traction rod, transmission means, drive bearing seat, drive shaft.

Claims (1)

[Claims] 1. A base shaft (14) provided above the machine seat (11)
A polishing cylinder (2) with arc-shaped guide edges (26) formed on both ends, supported by base rollers (13) at both ends.
1) Inside, there is a means (70) for adjusting both ends of the support shaft (31).
A polishing roll (32), supported by the transmission means ( 80), both of which rotate in the same direction, and a grinding operation is performed on the contact surface. 2. Connected to both ends of the polishing cylinder (21), the polishing cylinder (21) is provided with a scooping wheel (42) and a receiving plate (44) at one end thereof engaged with a collecting and transporting pipe (45) for incompletely crushed coarse powder. A rotary shell (41) is fixedly installed, and springs (512) are installed on both sides of the machine seat (11) on the outer edge, inside it, and on the bottom edge.
) A support frame (51) with a pivot groove (511) is fixedly installed, and a raw material charging port (56) and an inlet port (5
7), a fine powder chamber equipped with a fine powder product outlet (58), and a wind pipe (59) inserted into the polishing cylinder (21);
52) Connect the engaging portions (521) formed on both sides to the engaging groove (5
2. The pulverizer according to claim 1, wherein the pulverizer is fitted into the pulverizer 11) so that the fine powder chamber (52) can be adjusted up and down by the spring (512). 3. The roll support shaft (31) is attached to the drive shaft (85) at the top of the drive support seat (84) provided on the machine seat (11),
A tow bar (7
4) installed and supported by the support arm (71) and the frame arm (73), and the polishing roll support shaft (31)
2. The pulverizer according to claim 1, wherein the pulverizer can be adjusted up and down. 4. A raw material supply pipe (61) and a raw material extruder connected to the polishing cylinder (21), or a raw material extrusion pipe connected thereto, are provided at the upper end of the interior of the polishing cylinder (21), or the rotary shell (41), or the fine powder chamber (52). pipe (62) and recovery transport pipe (
45), each of which transports the pulverized raw material or unfinished fine powder to be introduced between the polishing cylinder (21) and the polishing roll (32). The crusher according to any one of the above.